Power Supplies Technician

About Us

Diamond Light Source is the UK’s national synchrotron, a large‑scale scientific facility producing intense beams of X-rays, infrared, and ultraviolet light. Our scientists use this light to study a vast range of subjects, from new medicines and treatments for disease to innovative engineering and cutting‑edge technology.
Currently, Diamond is undergoing a major upgrade, known as Diamond‑II, which will deliver a new machine and beamlines, alongside comprehensive upgrades to optics, detectors, sample environments, sample delivery, and computing. This will generate an even more brilliant light source at higher energy.

We now have an opportunity for a Power Supplies Technician, for a 4‑year fixed term contract, to support the day‑to‑day operation of high‑performance magnet power supplies and to contribute to the development, testing, and commissioning of next‑generation power supplies systems for the Diamond‑II upgrade.

The role is fundamentally focused on supporting the Power Supplies group in delivering quality, reliability, and stability, and maintaining robust and consistent performance of high‑precision magnet power supplies throughout daily operations and development projects.

• Assist in safety inspections of power supply systems.
• Support the assembly, wiring and testing of sub‑racks and complete racks of power supplies.
• Assist in the installation, calibration and commissioning of new power supplies, following safety standards and IET Wiring Regulations.
• Provide operational support for magnet power supplies, including troubleshooting, repairs, and participation in the 24‑hour on‑call schedule.
• Assist in system faults finding, perform component‑level repair of power supplies, and implement corrective actions to minimise downtime.
• Maintain and update technical documentation and reports, including fault logs, as‑fitted and modified designs drawings.
• Assist with spares management, procurement of parts, and ensuring resources are available for operations and maintenance.

You will hold a HNC, HND, or Degree in Electrical and/or Electronic Engineering, or equivalent relevant experience or apprenticeship.

You will also demonstrate:

• Basic knowledge of electrical/electronic circuits and components.
• Practical and theoretical understanding of electrical safety at work.
• Experience in wiring and installation of LV cabinets and systems in accordance with IET Wiring Regulations.
• Basic knowledge of using electrical and electronic laboratory‑based testing equipment, with an understanding of measurement techniques.
• Working knowledge of electrical and mechanical engineering drawings and schematics.
• Experience with using tools and building cables and wiring assemblies following relevant standards.
• Practical experience of soldering through‑hole and SMD components.

The following areas are desirable:

• Experience in testing and commissioning of electronic and power electronics systems.
• Experience of working within a QA system.
• Demonstrable relevant work experience.
• Membership of a relevant professional body.

You will have the ability to work effectively as part of a team, demonstrating good oral and written communication skills and strong attention to detail. You will be self‑motivated and proactive in identifying and resolving problems, with competence in the use of computers and Microsoft Office applications. In addition, you must be willing to work shifts, be on‑call, and work out‑of‑hours as required, as well as travel for work‑related business, including some overnight stays.

A driving licence is desirable.

Diamond offers an exceptional benefits package to support staff in achieving a positive work/life balance. This includes 26 days annual leave plus Christmas closure, public holidays, 2 annual volunteering days and flexible working hours. We also offer an excellent defined benefit pension scheme. Staff also have access to a range of amenities on site including a nursery, cafes, a restaurant and sports and leisure facilities.

A relocation allowance may also be available where applicable.

As standard this role requires a fully onsite working arrangement.